VEHICLE CONTROL APPARATUS AND VEHICLE CONTROL METHOD
First Claim
1. A vehicle control apparatus installed in a vehicle having an internal combustion engine and an electric rotating machine as driving sources, said vehicle including said electric rotating machine, electric equipment operating upon driving of said electric rotating machine, a power storage device supplying electric power to said electric rotating machine and said electric equipment and being rechargeable using an external power source, and a cooling device for cooling said electric equipment using a cooling medium,said vehicle control apparatus comprising:
- a medium temperature detection unit for detecting a temperature of said cooling medium; and
a control unit for determining an upper limit value of discharged power from said power storage device in accordance with the temperature of said cooling medium and controlling discharged power from said power storage device so as not to exceed the determined said upper limit value, whereinif the temperature of said cooling medium increases from a first temperature to a second temperature, said control unit determines said upper limit value such that a reduction rate of said upper limit value in accordance with an increase of the temperature of said cooling medium at a time when said vehicle runs in a first running state of running using motive power of said electric rotating machine with said internal combustion engine shut down is greater than a reduction rate of said upper limit value in accordance with an increase of the temperature of said cooling medium at a time when said vehicle runs in a second running state of running using both motive power of said internal combustion engine and motive power of said electric rotating machine.
1 Assignment
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Accused Products
Abstract
An ECU executes a program including the steps of: executing first restriction control if the temperature of coolant is equal to or greater than a first temperature and smaller than a second temperature; executing second restriction control if the temperature of the coolant is equal to or greater than the second temperature; and executing normal control if the temperature of the coolant is smaller than the first temperature.
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Citations
5 Claims
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1. A vehicle control apparatus installed in a vehicle having an internal combustion engine and an electric rotating machine as driving sources, said vehicle including said electric rotating machine, electric equipment operating upon driving of said electric rotating machine, a power storage device supplying electric power to said electric rotating machine and said electric equipment and being rechargeable using an external power source, and a cooling device for cooling said electric equipment using a cooling medium,
said vehicle control apparatus comprising: -
a medium temperature detection unit for detecting a temperature of said cooling medium; and a control unit for determining an upper limit value of discharged power from said power storage device in accordance with the temperature of said cooling medium and controlling discharged power from said power storage device so as not to exceed the determined said upper limit value, wherein if the temperature of said cooling medium increases from a first temperature to a second temperature, said control unit determines said upper limit value such that a reduction rate of said upper limit value in accordance with an increase of the temperature of said cooling medium at a time when said vehicle runs in a first running state of running using motive power of said electric rotating machine with said internal combustion engine shut down is greater than a reduction rate of said upper limit value in accordance with an increase of the temperature of said cooling medium at a time when said vehicle runs in a second running state of running using both motive power of said internal combustion engine and motive power of said electric rotating machine. - View Dependent Claims (2, 3, 4)
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5. A vehicle control method installed in a vehicle having an internal combustion engine and an electric rotating machine as driving sources, said vehicle including said electric rotating machine, electric equipment operating upon driving of said electric rotating machine, a power storage device supplying electric power to said electric rotating machine and said electric equipment and being rechargeable using an external power source, and a cooling device for cooling said electric equipment using a cooling medium,
said vehicle control method comprising: -
detecting a temperature of said cooling medium; and determining an upper limit value of discharged power from said power storage device in accordance with the temperature of said cooling medium and controlling discharged power from said power storage device so as not to exceed said upper limit value determined in said step of determining an upper limit value, wherein if the temperature of said cooling medium increases from a first temperature to a second temperature, said step of controlling determines said upper limit value such that a reduction rate of said upper limit value in accordance with an increase of the temperature of said cooling medium at a time when said vehicle runs in a first running state of running using motive power of said electric rotating machine with said internal combustion engine shut down is greater than a reduction rate of said upper limit value in accordance with an increase of the temperature of said cooling medium at a time when said vehicle runs in a second running state of running using both motive power of said internal combustion engine and motive power of said electric rotating machine.
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Specification